Organic garbage and sludge mixed solid fuel and preparation method thereof
A technology of organic waste and solid fuel, applied in the direction of solid fuel, fuel, waste fuel, etc., can solve the problems of high cost of waste incineration, waste of recyclable resources, etc., achieve good social and environmental benefits, realize resource utilization, production simple method effect
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[0015] The preparation process of the present invention involves three stages of raw material preparation, forming and consolidation.
[0016] The preparation of raw materials includes drying, crushing and mixing of raw materials. Due to the high moisture content of the collected domestic waste, in order to meet the moisture requirements of the molding fuel, the organic waste, which has removed heavy metals, large bricks, tiles, and other inorganic components, is dried or naturally air-dried and dehydrated, and its moisture content is controlled at 4 %~8%; then the pulverized coal and dried domestic garbage are crushed to 3mm~10mm particles by ordinary crushing machinery; then the garbage particles, coal pulverized coal, sludge, combustion aid, desulfurization and dechlorination agent are in an appropriate proportion Fully mixing, in order to make the surface of the raw material particles evenly wetted by the sludge, covering the surface of the garbage and coal particles, to achie...
Example Embodiment
[0022] [Example 1]
[0023] After drying, the organic garbage particles, sludge, and coal particles with a moisture content of 4% to 8% are mixed in a ratio of 1:1:2, and the combustion-supporting agent MnO is added. 2 The content is 0.18%, the desulfurization and dechlorination agent CaO content is 0.90%, and the mixture is evenly mixed to keep the moisture content at 8%-12%; then it is kneaded and processed into a solid fuel product with a moisture content of 5%-15%. . The "Industrial Briquette Cold Compressive Strength Measurement Method" (MT / T748-1997) is used to determine the compressive strength of the solid fuel. The compressive strength of the solid fuel is determined to be in the range of 167.2620kPa to 207.0788kPa, with a reliability of 95%.
Example Embodiment
[0024] [Example 2]
[0025] After drying, the organic garbage particles, coal particles, and sludge with a moisture content of 4% to 8% are mixed in a ratio of 2:1:1, and the combustion-supporting agent MnO is added. 2 The content is 0.17%, the CaO content of the desulfurization and dechlorination agent is 1.20%, and the mixture is evenly mixed to keep the moisture content at 8%-12%; then it is kneaded and processed into a solid fuel product with a moisture content of 5% to 15%. . After immersing the shaped solid fuel product in water (at room temperature) for 24 hours, the "Industrial Coal Briquette" (MT / T749-1997) is used to determine the water immersion strength of the solid fuel. The immersion strength of solid fuel is in the range of 18.74458kPa to 23.484038kPa, and the reliability is 95%.
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